Btus To Calories Conversion


1 Btu = 252.19021687207 cal

Want to convert from calories to btus instead?

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How to convert btus to calories (Btu to cal)

The formula for converting btus to calories is: cal = Btu × 252.19021687207. To calculate the btu value in calories first substitute the btu value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 btu in calories we follow these steps:

cal = Btu × 252.19021687207

cal = 1 × 252.19021687207

cal = 252.19021687207

In other words, 1 btu is equal to 252.19021687207 calories.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 6 btus to calories is:

  1. Understand the conversion formula: cal = Btu × 252.19021687207
  2. Substitute the required value. In this case we substitute 6 for Btu so the formula becomes: cal = 6 × 252.19021687207
  3. Calculate the result using the provided values. In our example the result is: 6 × 252.19021687207 = 1513.14130123242 cal

In summary, 6 btus is equal to 1513.14130123242 calories.

Converting calories to btus

In order to convert the other way around i.e. calories to btus, you would use the following formula: Btu = cal × 0.0039652608749183. To convert calories to btus first substitute the calorie value into the above formula, and then execute the calculation. If we wanted to calculate 1 calorie in btus we follow these steps:

Btu = cal × 0.0039652608749183

Btu = 1 × 0.0039652608749183

Btu = 0.0039652608749183

Or in other words, 1 calorie is equal to 0.0039652608749183 btus.

Conversion Unit Definitions

What is a Btu?

BTU, or British Thermal Unit, is a unit of heat energy commonly used in the United States and some other countries. One BTU is the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at a constant pressure.
In SI units, one BTU is approximately equal to 1,055 joules. It is often used in the context of heating, air conditioning, and energy-related applications, especially in the United States. For example, the heating or cooling capacity of air conditioning systems, as well as the energy content of fuels such as natural gas, is often expressed in BTUs.
For comparison, 1 BTU is roughly equivalent to the energy released by burning a match. In practical terms, it's a relatively small unit of energy, but it's useful for everyday applications involving heating or cooling.

What is a Calorie?

A calorie (cal) is a unit of energy commonly used in nutrition. It represents the amount of energy required to raise the temperature of one gram of water by one degree Celsius (or one degree Kelvin). In the context of nutrition, the term "calorie" usually refers to a kilocalorie, which is equal to 1,000 calories in scientific terms.
The energy content of food and beverages is often measured in kilocalories, abbreviated as kcal or Cal (with an uppercase "C" to distinguish it from the smaller "cal" used in physics).
In scientific terms, 1 kilocalorie is equal to 4.184 kilojoules (kJ). The conversion factor between kilocalories (kcal) and kilojoules (kJ) is 1 kcal = 4.184 kJ.
In everyday language, when people refer to the number of calories in food, they are usually referring to kilocalories. For example, if a food label says a serving contains 200 calories, it means 200 kilocalories or 200,000 calories in scientific terms.

Btus To Calories Conversion Table

Below is a lookup table showing common btus to calories conversion values.

British Thermal Unit (Btu)Calorie (cal)
1 Btu252.19021687207 cal
2 Btu504.38043374414 cal
3 Btu756.57065061621 cal
4 Btu1008.76086748828 cal
5 Btu1260.95108436035 cal
6 Btu1513.14130123242 cal
7 Btu1765.33151810449 cal
8 Btu2017.52173497656 cal
9 Btu2269.71195184863 cal
10 Btu2521.9021687207 cal
11 Btu2774.09238559277 cal
12 Btu3026.28260246484 cal
13 Btu3278.47281933691 cal

Other Common Btu Conversions

Below is a table of common conversions from btus to other energy units.

1 btu in joules1055.87 J
1 btu in megajoules0.00105587 MJ
1 btu in watt hours0.29329722222222 Wh
1 btu in kilowatt hours0.00029329722222222 kWh
1 btu in megawatt hours0.00000029329722222222 MWh
1 btu in therms0.00001 thm